// sktoolslib - common files for SK tools

// Copyright (C) 2013 - Stefan Kueng

// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//

#pragma once

/// helper class to preserve the CWD (current directory):
/// saves the CWD on construction, restores it on deconstruction
class PreserveChdir
{
public:
    PreserveChdir();                                ///< saves originalCurrentDirectory
    ~PreserveChdir();                               ///< restores originalCurrentDirectory

private:
    PreserveChdir(const PreserveChdir&);            ///< non-copyable
    PreserveChdir& operator=(const PreserveChdir&); ///< non-assignable

    std::wstring m_originalDir;
};

